Multi-strand ACL reconstruction: understanding the graft

ACL reconstruction replaces a damaged anterior cruciate ligament with a tendon graft. When a surgeon talks about a multi-strand graft, they are describing how that tendon is prepared, not a shortcut around the need for careful rehabilitation.

What does the ACL do?

The anterior cruciate ligament helps control movement within the knee, particularly during changes of direction. An injury can leave the knee feeling unstable during pivoting, landing or other demanding activities.

ACL reconstruction may be considered when instability interferes with a person’s goals. The decision takes account of activity demands, associated injuries and the results of non-surgical care.

How is a multi-strand graft made?

A tendon graft can be folded to create several strands. In some techniques, the surgeon prepares a five- or six-strand construct rather than a conventional four-strand arrangement. One aim is to achieve a suitable graft diameter using the available tendon.

The number of strands is only one feature of the reconstruction. The source and quality of the tendon, graft position and fixation also matter. A larger graft is not, by itself, a guarantee of a better result.

Graft choice is an individual decision

Surgeons can use different tendon sources, including hamstring, patellar or quadriceps tendon. Each option has considerations for the patient and the proposed procedure. Age, sporting demands, previous surgery and the condition of the knee can influence the choice.

Ask which graft your surgeon recommends and why. Understanding the reasoning is more useful than comparing a single technical measurement without the wider clinical context.

Associated injuries affect the plan

An ACL injury can occur alongside damage to the meniscus or other knee structures. These findings may influence the operation and the rehabilitation instructions afterwards. Restrictions are therefore not identical for every patient undergoing an ACL reconstruction.

Tell your treating team about locking, giving way or swelling, and follow the guidance on weight-bearing and exercises after surgery.

Rehabilitation remains essential

The reconstructed ligament needs time to heal while strength, balance and movement control are rebuilt. Progression towards sport should include assessment of the activities the knee will face, rather than relying on graft size or elapsed time alone.

A structured rehabilitation programme also provides an opportunity to practise landing and change-of-direction techniques. Discuss ongoing injury-prevention exercises with your physiotherapist as you prepare to return to training.

Tendon graft preparation for ACL reconstruction

Dr Darren Waters discusses multi-strand graft preparation. Graft selection and expected outcomes require an individual surgical assessment.

Read about returning to sport after ACL surgery or explore our knee care services.